Swietopelk I (Polish:Świętopełk, also referred to as Swantopolk I), (c. 1080, died before 1148) sometimes called "Swietopelk of Nakło" (Polish:Świętopełk Nakielski) to distinguish him from other rulers of the same name, was one of the first knownDukes of Pomerania; in the years 1109/13 to 1121 he ruled overPomerelia.[1]
He is usually thought to have been the son ofŚwiętobór I (Swantibor),[2] although other historians make him a brother of Świętobór (as well as of a third Pomeranian duke, Dumar) and son ofSiemomysl I.[3]
He is mentioned in the chronicle ofGallus Anonymus. The 16th-century Pomeranian chroniclerThomas Kantzow also states that Swietopelk was one of the younger sons of Swietibor, who ruled Eastern Pomerania after his father was deposed.[4] The Prussian historianLudwig Giesebrecht, who gave approximate dates for the duke's birth and death, considered him the originator of the Pomeralian dynasty and stated that Swietopelk and his father Swietibor were related to thePiast dynasty through marriage.[5] Other historians have also hypothesized that Swietopelk and Swietibor were related, by blood or by marriage, to the Polish Piast dynasty, or that they served asvoyevodas for them inGdańsk (Danzig).[5] However, Edward Rymar contests the thesis that Swietopelk was Swantibor's son based on the fact that Gallus Anonymous would have surely mentioned that fact, but rather the chronicler described Swietopelk as a "certain Pomeranian" who was granted control over Polish land by the Polish ruler.[4]
Along with his father he was most likely expelled from Pomerania around 1106 by rivals. AfterBolesław III Krzywousty defeated Pomeranian dukes at theBattle of Nakło (whose forces, according toGallus Anonymus numbered thirty thousand),[6] he gave SwietopelkNakło, and othergrods (Slavic settlements) on the riverNoteć as a fief.[7]
After Swietopelk tried to carry out foreign policy without approval of the Polish ruler in 1112, Krzywousty invaded his lands. After a three-month siege of Nakło (according to Gallus, from September 29 until December 25), he forced Swietopelk to submit. Swietopelk had to pay a tribute to the Polish duke and gave his son (name unknown) as a hostage. In 1113, Swietopelk once again rebelled against Polish rule and Bolesław once again invaded, takingWyszogród and Nakło.[6]
Little is known of his later life. In 1119, Krzywousty defeated two unnamed Pomeranian dukes, taking one prisoner and banishing the other. It is possible that one of them was Swietopelk.
According to later chronicles ofJan Długosz and Kantzow, in 1121, a Duke "Odrzanski" ("of theOder") named Swietopelk died.[8] Some historians have interpreted this to have been the same Swietopolk, son of Świętobór. However, others consider the "Odrzanski" Swietopolk to have been a different person, Duke of theChyżans (Kcynians), whose lands were invaded in 1121 by theSaxon princeLothar of Supplinburg.[9]
Swietopelk had several sons, one of whom served as a hostage at the court of Bolesław Krzywousty. It is possible that this unnamed son was the father ofSobieslaw I, Duke of Pomerania, founder of theSamborides dynasty.[3]